Method: 1. Sieve together the baking powder, cooking soda and maida 3 to 4 times. 2. Mix the sugar and butter in a bowl. 3. Add the brown sugar, eggs and banana essence to the bowl. 4. Add the bananas and mix well. 5. Gradually add the maida and mix. 6. Add the warm milk and mix well. 7. Pour this into a greased cake tin lined with parchment paper. 8. Place the cake tin into a preheated oven at 200C and bake for 10 to 15 minutes or until a skewer inserted into the center comes out clean. 9. Remove and cool. 10. Cut into slices and serve.